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Merge pull request #23108 from crackwitz:issue-23107

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Usage of imread(): magic number 0, unchecked result

* docs: rewrite 0/1 to IMREAD_GRAYSCALE/IMREAD_COLOR in imread()

* samples, apps: rewrite 0/1 to IMREAD_GRAYSCALE/IMREAD_COLOR in imread()

* tests: rewrite 0/1 to IMREAD_GRAYSCALE/IMREAD_COLOR in imread()

* doc/py_tutorials: check imread() result
This commit is contained in:
Christoph Rackwitz
2023-01-09 01:55:31 -08:00
committed by GitHub
parent 7b7774476e
commit a64b51dd94
57 changed files with 129 additions and 74 deletions
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samples/cpp/tutorial_code/snippets/imgproc_drawContours.cpp
+1 -1
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@@ -9,7 +9,7 @@ int main( int argc, char** argv )
Mat src;
// the first command-line parameter must be a filename of the binary
// (black-n-white) image
if( argc != 2 || !(src=imread(argv[1], 0)).data)
if( argc != 2 || !(src=imread(argv[1], IMREAD_GRAYSCALE)).data)
return -1;
Mat dst = Mat::zeros(src.rows, src.cols, CV_8UC3);